22212222002012 has 24 divisors (see below), whose sum is σ = 47037646593504. Its totient is φ = 8959551731712.

The previous prime is 22212222001987. The next prime is 22212222002017. The reversal of 22212222002012 is 21020022221222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212222002017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23332165493 + ... + 23332166444.

It is an arithmetic number, because the mean of its divisors is an integer number (1959901941396).

Almost surely, 2^{22212222002012} is an apocalyptic number.

It is an amenable number.

22212222002012 is an abundant number, since it is smaller than the sum of its proper divisors (24825424591492).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22212222002012 is a wasteful number, since it uses less digits than its factorization.

22212222002012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46664331965 (or 46664331963 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 22212222002012 its reverse (21020022221222), we get a palindrome (43232244223234).

The spelling of 22212222002012 in words is "twenty-two trillion, two hundred twelve billion, two hundred twenty-two million, two thousand, twelve".